From patchwork Thu Jul 21 14:35:46 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xin Long X-Patchwork-Id: 12925297 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 92B26C433EF for ; Thu, 21 Jul 2022 14:35:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229684AbiGUOfx (ORCPT ); Thu, 21 Jul 2022 10:35:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51088 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229502AbiGUOfw (ORCPT ); Thu, 21 Jul 2022 10:35:52 -0400 Received: from mail-qt1-x82a.google.com (mail-qt1-x82a.google.com [IPv6:2607:f8b0:4864:20::82a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 75E9D186EB; Thu, 21 Jul 2022 07:35:50 -0700 (PDT) Received: by mail-qt1-x82a.google.com with SMTP id r24so1374380qtx.6; Thu, 21 Jul 2022 07:35:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=TNm3aXN1thCBh+umGTMO255119B8nj1I3dKmFNCEHvU=; b=YCWFOqbwbpDDBfdHjdxnU94lcBxg08CwjCXk1EZUjbjBvWPuo3bfXOnM/lEGivq4wS ia2Q+j4EPucBzXG0DfHPOOZK20UPeSRktKWAE8JTGyaAPJ1ByyVSvV+CYzSUtA+PCxBl ohSl4H551LTW/9Zs/u9kdtlmmTrWHd0JIvjgWxo6QgGFp9KwCxqaV/b3dveRtD4xbMMC RTPMO6RIq3DMusYPBhsCe70N9oiWae99WWJX3DI2jrCVX7l7Qg//vzGveaKt8W5KGmEX pnVe538OweaMgtU4UlU7UhJ/a+4+QW3eDSEoqSVSyTCWAApb+vYhuAhH6CbNODWvvmHO +d2Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=TNm3aXN1thCBh+umGTMO255119B8nj1I3dKmFNCEHvU=; b=XXzA959wNajcDAEEQjNR0xFkQrrfycjxUMGCxfR3txaJX24b4iRN7oYzcBMpivfQmE lLaK/FQSsGdWkwTjq21zhHV360Xmt8lNtd1cq3SpUzFLrtTBj1EC9rEyYjf+fTakt4KG V+IxfdSj8a5AVl94u0aT3JEummnNiz/Y99meW/zM39lndh2kDgWFnw5eSm4KBh9UPamh /CJwwdg21zHQFpeQ78brKBbkGHYCCEtklVaAYozyHN07GeOJ783Mx1uz7am2NVQbiLhr b0tiGKzpqmO8wifsd1Eu98U0w0HWZ0Qe9sFWx7Gt0R731bcPt93O6m/5BsWS7F0DZzro kQng== X-Gm-Message-State: AJIora+wNk2KN/ItHHA0DhK5RXND5Z9cctC/Jt24pplwYdBMtgJtOs7/ d9R1dpkHOnCnRj5uNbtuElcqgA/McFk= X-Google-Smtp-Source: AGRyM1uSy7GP6yBulr7nDh1U6Xo+MTIjhZNdr9VWz/vNGz5Ij/Ard9efpzAlTxvW+6u00OE9mrlDXg== X-Received: by 2002:a05:622a:13ce:b0:31a:b4ce:1679 with SMTP id p14-20020a05622a13ce00b0031ab4ce1679mr33653394qtk.330.1658414149350; Thu, 21 Jul 2022 07:35:49 -0700 (PDT) Received: from wsfd-netdev15.ntdv.lab.eng.bos.redhat.com (nat-pool-bos-t.redhat.com. [66.187.233.206]) by smtp.gmail.com with ESMTPSA id y5-20020a05620a44c500b006b4880b08a9sm207452qkp.88.2022.07.21.07.35.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 Jul 2022 07:35:49 -0700 (PDT) From: Xin Long To: network dev , linux-sctp@vger.kernel.org Cc: davem@davemloft.net, kuba@kernel.org, Marcelo Ricardo Leitner Subject: [PATCHv2 net] Documentation: fix sctp_wmem in ip-sysctl.rst Date: Thu, 21 Jul 2022 10:35:46 -0400 Message-Id: X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Since commit 1033990ac5b2 ("sctp: implement memory accounting on tx path"), SCTP has supported memory accounting on tx path where 'sctp_wmem' is used by sk_wmem_schedule(). So we should fix the description for this option in ip-sysctl.rst accordingly. v1->v2: - Improve the description as Marcelo suggested. Fixes: 1033990ac5b2 ("sctp: implement memory accounting on tx path") Signed-off-by: Xin Long Acked-by: Marcelo Ricardo Leitner --- Documentation/networking/ip-sysctl.rst | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/Documentation/networking/ip-sysctl.rst b/Documentation/networking/ip-sysctl.rst index 0e58001f8580..af2f0dfd50db 100644 --- a/Documentation/networking/ip-sysctl.rst +++ b/Documentation/networking/ip-sysctl.rst @@ -2870,7 +2870,14 @@ sctp_rmem - vector of 3 INTEGERs: min, default, max Default: 4K sctp_wmem - vector of 3 INTEGERs: min, default, max - Currently this tunable has no effect. + Only the first value ("min") is used, "default" and "max" are + ignored. + + min: Minimum size of send buffer that can be used by SCTP sockets. + It is guaranteed to each SCTP socket (but not association) even + under moderate memory pressure. + + Default: 4K addr_scope_policy - INTEGER Control IPv4 address scoping - draft-stewart-tsvwg-sctp-ipv4-00